1. Sumome
Sumome offers a wide range of email marketing tools allowing you to optimize your site for more conversions:- Smart bar allows users to opt in using the horizontal bar across the screen that shows up when they scroll
- Scroll box lets users opt in using a box showing up in the corner of the screen
- List builder lets you create smart rules for showing a popup when a user is ready to exit or seems lost


2. Leadfeeder
Leadfeeder connects to your Google Analytics and shows the companies that have visited your website. They are sorted by how active they were on your website, with the most active appearing on top.
For each company you can see their industry and location.
If you clicking the box, you’ll see more information including number of employees, contact details and the website. Moreover, Leadfeeder will pull the company’s employees from Linkedin and show how you are connected to them:
3. Yotpo
Yotpo utilizes social media updates as product reviews. It’s quite natural that people landing from Instagram and seeing other people’s Instagram reviews on the page are likely to convert better.Yotpo lets you moderate social media search results to select positive reviews and display them on your site in a neat-looking widget.

Source : internetmarketingninjas